The "hail prevalence moon" has arrived.

Science Fiction Network June 14th (Qin Yingying) Recently, thunderstorm weather appeared in most parts of Beijing, and the rainfall distribution was extremely uneven. The northeast and Tongzhou northern parts reached heavy rainfall. Halm appeared in multiple districts, with a maximum hail diameter of 5 cm.

In the hot summer, why did it be hail? The hail mainly appeared from May to September. The total hail days of these five months accounted for more than 80%of the hail days throughout the year, of which the hail was popular in June.

Hail is commonly known as hail, "子” ", and some areas are called" coldzi ". It is a weather phenomenon. The intersection of summer or spring and summer is the most common. It is like mung beans, soybeans, like chestnuts and eggs.

Water vapor condenses into clouds in the air. When the temperature drops to a certain degree, the water vapor of the air is too saturated, so it rains. If you encounter cold air without condensed tuberculosis, the water vapor will condense into ice or snow, which is snowing. If the temperature drops sharply, it will form a larger ice ball, that is, hail.

In spring and summer, the weather is warmer, the sun bakes the earth hot, and it is easy to form unstable humid and humid air near the ground. When there is a weak and cold air at high altitude, "upper cold and warm" can easily cause the air to be strong, and the humid and humid air rises rapidly, creating excellent conditions for the formation of hail. In winter, the temperature near the ground is very low, and it is not easy to produce a powerful rapid rise in airflow, so it is difficult to form hail in winter.

Disaster disasters from different degrees of hail every year. Especially in the mountains and hills in the north, the eastern part of the Qinghai -Tibet Plateau, and the Yunnan -Guizhou area, the terrain is complex, the weather is changeable, the hail is large, and the harm is severe, which is very harmful to agriculture.

The violent hail destroys crops, damaged the house, and people were injured and livestock was killed. The large hail is even larger than grapefruit, which will cause death, destroy large farmland and trees, and destroy buildings and vehicles. Has strong lethality. Hai disaster is one of the serious natural disasters in China.

Based on weather maps, satellite cloud map analysis and radar monitoring, the Meteorological Observatory has been increasing the timeliness and accuracy of strong weather forecasting. Scientifically and reasonable layout artificially affect weather operations, and enhance the effect of manual hail prevention.

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